CN114798589A - Zinc sulfide lens surface treatment process - Google Patents
Zinc sulfide lens surface treatment process Download PDFInfo
- Publication number
- CN114798589A CN114798589A CN202210485900.4A CN202210485900A CN114798589A CN 114798589 A CN114798589 A CN 114798589A CN 202210485900 A CN202210485900 A CN 202210485900A CN 114798589 A CN114798589 A CN 114798589A
- Authority
- CN
- China
- Prior art keywords
- zinc sulfide
- surface treatment
- treatment process
- lens
- wiping
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000005083 Zinc sulfide Substances 0.000 title claims abstract description 45
- 229910052984 zinc sulfide Inorganic materials 0.000 title claims abstract description 45
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 39
- 238000004381 surface treatment Methods 0.000 title claims abstract description 26
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims abstract description 42
- 238000005498 polishing Methods 0.000 claims abstract description 25
- 238000004506 ultrasonic cleaning Methods 0.000 claims abstract description 8
- 239000007888 film coating Substances 0.000 claims abstract description 6
- 238000009501 film coating Methods 0.000 claims abstract description 6
- 238000007689 inspection Methods 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 239000004744 fabric Substances 0.000 claims description 19
- 239000000243 solution Substances 0.000 claims description 15
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 13
- 229910003460 diamond Inorganic materials 0.000 claims description 12
- 239000010432 diamond Substances 0.000 claims description 12
- 239000000843 powder Substances 0.000 claims description 12
- 238000004140 cleaning Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 239000007864 aqueous solution Substances 0.000 claims description 6
- 239000008367 deionised water Substances 0.000 claims description 6
- 229910021641 deionized water Inorganic materials 0.000 claims description 6
- 239000000725 suspension Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 239000011259 mixed solution Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000002087 whitening effect Effects 0.000 abstract description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 8
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 210000005224 forefinger Anatomy 0.000 description 3
- 230000002262 irrigation Effects 0.000 description 3
- 238000003973 irrigation Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 210000003811 finger Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000004297 night vision Effects 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/14—Wipes; Absorbent members, e.g. swabs or sponges
- B08B1/143—Wipes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/30—Cleaning by methods involving the use of tools by movement of cleaning members over a surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/08—Cleaning involving contact with liquid the liquid having chemical or dissolving effect
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09G—POLISHING COMPOSITIONS; SKI WAXES
- C09G1/00—Polishing compositions
- C09G1/02—Polishing compositions containing abrasives or grinding agents
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The invention belongs to the field of lens surface treatment, and discloses a surface treatment process of a zinc sulfide lens, which comprises the following steps: (1) wiping with citric acid; (2) preparing a polishing solution; (3) wiping the polishing solution; (4) ultrasonic cleaning; (5) and after the inspection is qualified, entering a subsequent film coating process. The surface treatment process for the zinc sulfide lenses can better clean the zinc sulfide lenses, solves the appearance problems of surface smudging, whitening and the like after the zinc sulfide lenses are coated with films, and improves the yield of the zinc sulfide lenses in the production process.
Description
Technical Field
The invention belongs to the field of infrared product surface treatment, and particularly relates to a zinc sulfide lens surface treatment process.
Background
The zinc sulfide lens is mainly used as a mainstream product of an infrared lens, has excellent wave band characteristics, can penetrate through visible waves to medium and long wave bands, is also suitable for more accurate positioning on a missile head, can effectively avoid heat problems, and is mainly applied to infrared security monitoring, vehicle-mounted infrared night vision, fire protection, electric power detection and the like.
The zinc sulfide lens is coated before delivery and use, and is subjected to a surface treatment process before coating, wherein the current common surface treatment process comprises the following steps: the polishing process is finished, and then the film is coated by dipping alcohol and acetone with dust-free cloth for pure manual wiping, and the process has the following problems:
(1) when the film is wiped by pure hand, excessive wiping may be performed due to the fact that visible dirt on the surface is removed, and in the specific wiping process, the alcohol/acetone wiping retention time is too long, the wiping force is too large, so that traces are left on the surface, and the coated lens generates white marks and is in a regular ring shape;
(2) because of the visible light transmission characteristic of the zinc sulfide polishing material, after the zinc sulfide polishing material is wiped by alcohol and acetone, residual micro oxides/dirt on the surface of the zinc sulfide polishing material cannot be seen through reflection and transmission, and the zinc sulfide polishing material can be shown after film coating.
(3) Based on the surface treatment process before the coating of the zinc sulfide lens, the surface of the zinc sulfide lens is stained and whitened after the coating, and the yield of the production process is improved.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a zinc sulfide lens surface treatment process, which can better clean the zinc sulfide lens, solve the problem that the surface of the zinc sulfide lens is stained and whitened after being coated with a film, and improve the yield of the zinc sulfide lens in the production process.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a zinc sulfide lens surface treatment process comprises the following steps:
(1) after polishing the zinc sulfide lens, wiping the surface of the lens by using a citric acid aqueous solution;
(2) preparing polishing solution, wherein the polishing solution is suspension liquid comprising diamond powder, water and alcohol;
(3) wiping the surface of the lens by using polishing solution;
(4) ultrasonic cleaning;
(5) and after the inspection is qualified, entering a subsequent film coating process.
Preferably, in the aqueous solution of citric acid in step (1), the mass ratio of citric acid to water is 1: 5 to 10.
Preferably, the purity of the citric acid is more than 99%, and the water is deionized water.
Preferably, in the step (2), the preparation method of the polishing solution is:
uniformly mixing diamond powder and water to obtain a first mixed feed liquid;
and uniformly mixing the first mixed material liquid and alcohol to obtain the polishing solution.
Preferably, the particle size of the diamond powder is 0.15-0.30 um, and the water is deionized water.
Preferably, the mass ratio of the diamond powder to the water is 1: 8-12.
Preferably, the volume ratio of the first mixed feed liquid to the alcohol is 5: 1 to 2.
Preferably, in step (1) or (3), the specific wiping method is: and uniformly wiping the lens by using dust-free cloth along one direction until the surface of the lens is observed under a strong light, wherein the surface is free of dirt. The method specifically comprises the following steps: wrapping the index finger with dust-free cloth, and uniformly and lightly wiping the lens with the drip irrigation liquid on the index finger along one direction.
Preferably, the cleaning grade of the dust-free cloth is not lower than hundred, the dust-free cloth wiping process needs to keep the wiping part of the dust-free cloth free of wrinkles, and the surface is smooth.
Preferably, in the step (4), the frequency of ultrasonic cleaning is 67-80 kHz, and the cleaning time is 0.5-1 h.
Preferably, in the step (5), the American military standard MIL-PRF-13830B is used as the qualified standard of detection.
Compared with the prior art, the invention has the beneficial effects that:
(1) the surface treatment process of the zinc sulfide lens can better clean the zinc sulfide lens, solve the problem that the surface of the zinc sulfide lens is dirty and whitish after being coated with a film, and improve the yield of the zinc sulfide lens in the production process.
(2) According to the invention, the citric acid wiping and the polishing solution wiping are adopted, so that residual white stains on the surface of the product can be effectively removed, the oxide layer is removed, the problem of whitening of dirt after film coating is avoided, the scrapping and repairing probability is effectively avoided, and the qualification rate is improved.
(3) The invention sets ultrasonic cleaning at last, which can ensure the uniform cleaning of the contact surface and better finish and can ensure the stability of the product quality.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a flow chart of the surface treatment process of the zinc sulfide lens of the present invention.
FIG. 2 is a picture of the zinc sulfide lens treated in example 1 after being coated.
FIG. 3 is a photograph of a zinc sulfide lens treated in comparative example 1 after being coated with a film.
Detailed Description
In order to facilitate an understanding of the invention, the invention will be described more fully and in detail below with reference to the accompanying drawings and preferred embodiments, but the scope of the invention is not limited to the specific embodiments below.
Unless otherwise defined, all terms of art used hereinafter have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the present invention.
Unless otherwise specifically stated, various raw materials, reagents, instruments, equipment and the like used in the present invention are commercially available or can be prepared by existing methods.
Example 1
As shown in fig. 1, for a polished D45.6 zinc sulfide lens, the embodiment provides a surface treatment process for a zinc sulfide lens, which includes the following steps:
(1) wiping by using a citric acid aqueous solution after polishing, wherein the citric acid aqueous solution comprises the following components in a mass ratio of 1: 5, the purity of the citric acid is 99%, the water is deionized water, in the wiping process, a forefinger is wrapped by dust-free cloth, a water solution of citric acid is dripped on the forefinger by drip irrigation, the lens is uniformly and lightly wiped along one direction, the surface of the lens is not dirty when observed under a strong light, the cleaning grade of the dust-free cloth is not lower than hundred, the wiping part of the dust-free cloth does not need to be wrinkled in the wiping process of the dust-free cloth, and the surface is smooth;
(2) preparing polishing solution, wherein the polishing solution is suspension formed by mixing diamond powder, water and alcohol, and specifically comprises the following steps: uniformly mixing diamond powder and water to obtain a first mixed feed liquid; and uniformly mixing the first mixed material liquid and alcohol to obtain the polishing solution, wherein: the granularity of the diamond powder is 0.25um, the water is deionized water, the mass ratio of the diamond powder to the water is 1:10, and the volume ratio of the first mixed feed liquid to the alcohol is 5: 1;
(3) wrapping the forefinger with dust-free cloth, uniformly and lightly wiping the lens along one direction by using drip irrigation polishing liquid, wherein the cleaning grade of the dust-free cloth is not lower than hundred, the wiping part of the dust-free cloth does not need to be wrinkled in the wiping process of the dust-free cloth, and the surface is smooth;
(4) placing the lens in an ultrasonic cleaning machine, setting the ultrasonic cleaning frequency to be 67kHz, and setting the cleaning time to be 0.5 h;
(5) and (3) after the inspection is qualified, entering a subsequent film coating process, wherein the detection means is as follows: under 60w incandescent lamp, the detection standard is according to: the US army Standard MIL-PRF-13830B.
The surface of the zinc sulfide lens after coating is shown in fig. 2, and the surface has no problems such as smudging and whitening.
Comparative example 1
The comparative example provides a surface treatment process for a polished D45.6 zinc sulfide lens, which specifically comprises the following steps:
after polishing, before coating, the film is wiped by hand with a piece of dust-free cloth dipped with alcohol and acetone, and then the film is coated.
The surface of the zinc sulfide lens after coating is shown in fig. 3, and the surface of the lens is stained and whitened deeply and shallowly, and the positions of the stains are different.
The present invention has been described in terms of the preferred embodiment, and it is not intended to be limited to the embodiment. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A zinc sulfide lens surface treatment process is characterized by comprising the following steps:
(1) after polishing the zinc sulfide lens, wiping the surface of the lens by using a citric acid aqueous solution;
(2) preparing polishing solution, wherein the polishing solution is suspension liquid comprising diamond powder, water and alcohol;
(3) wiping the surface of the lens by using polishing solution;
(4) ultrasonic cleaning;
(5) and after the inspection is qualified, entering a subsequent film coating process.
2. The zinc sulfide lens surface treatment process of claim 1, wherein in the citric acid aqueous solution in the step (1), the mass ratio of citric acid to water is 1: 5 to 10.
3. The zinc sulfide lens surface treatment process of claim 2, wherein the purity of the citric acid is 99% or more and the water is deionized water.
4. The zinc sulfide lens surface treatment process of claim 1, wherein in the step (2), the preparation method of the polishing solution comprises the following steps:
uniformly mixing diamond powder and water to obtain a first mixed feed liquid;
and uniformly mixing the first mixed material liquid and alcohol to obtain the polishing solution.
5. The surface treatment process for a zinc sulfide lens according to claim 4, wherein the diamond powder particle size is 0.15 to 0.30 μm, and the water is deionized water.
6. The surface treatment process for the zinc sulfide lens according to claim 4, wherein the mass ratio of the diamond powder to the water in the first mixed solution is 1: 8-12.
7. The zinc sulfide lens surface treatment process of claim 4, wherein the volume ratio of the first mixed feed liquid to the alcohol is 5: 1 to 2.
8. The zinc sulfide lens surface treatment process of claim 1, wherein in the step (1) or (3), the specific wiping method is as follows: the lens was wiped evenly in one direction with a dust-free cloth.
9. The surface treatment process of the zinc sulfide lens according to claim 8, wherein the cleanness level of the dust-free cloth is not less than hundred, the wiping part of the dust-free cloth is not wrinkled in the wiping process of the dust-free cloth, and the surface is smooth.
10. The surface treatment process of the zinc sulfide lens according to claim 1, wherein in the step (4), the frequency of ultrasonic cleaning is 67 to 80kHz, and the cleaning time is 0.5 to 1 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210485900.4A CN114798589A (en) | 2022-05-06 | 2022-05-06 | Zinc sulfide lens surface treatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210485900.4A CN114798589A (en) | 2022-05-06 | 2022-05-06 | Zinc sulfide lens surface treatment process |
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| Publication Number | Publication Date |
|---|---|
| CN114798589A true CN114798589A (en) | 2022-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210485900.4A Pending CN114798589A (en) | 2022-05-06 | 2022-05-06 | Zinc sulfide lens surface treatment process |
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| CN (1) | CN114798589A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115415204A (en) * | 2022-09-15 | 2022-12-02 | 安徽光智科技有限公司 | Treatment method before germanium lens coating |
| CN115445981A (en) * | 2022-09-22 | 2022-12-09 | 安徽光智科技有限公司 | Zinc selenide/zinc sulfide ball cover coating pretreatment process |
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|---|---|---|---|---|
| US5935869A (en) * | 1997-07-10 | 1999-08-10 | International Business Machines Corporation | Method of planarizing semiconductor wafers |
| CN108535080A (en) * | 2018-03-27 | 2018-09-14 | 华电国际电力股份有限公司技术服务中心 | A kind of metallurgical polishing method for making sample |
| CN110989053A (en) * | 2019-11-21 | 2020-04-10 | 天津津航技术物理研究所 | Chalcogenide glass substrate low-residual-reflectivity antireflection film and preparation method thereof |
| CN113118074A (en) * | 2021-04-06 | 2021-07-16 | 安徽光智科技有限公司 | Surface treatment process for infrared polished lens |
| CN114106701A (en) * | 2021-12-03 | 2022-03-01 | 安徽光智科技有限公司 | Polishing solution for zinc sulfide and preparation method thereof |
-
2022
- 2022-05-06 CN CN202210485900.4A patent/CN114798589A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5935869A (en) * | 1997-07-10 | 1999-08-10 | International Business Machines Corporation | Method of planarizing semiconductor wafers |
| CN108535080A (en) * | 2018-03-27 | 2018-09-14 | 华电国际电力股份有限公司技术服务中心 | A kind of metallurgical polishing method for making sample |
| CN110989053A (en) * | 2019-11-21 | 2020-04-10 | 天津津航技术物理研究所 | Chalcogenide glass substrate low-residual-reflectivity antireflection film and preparation method thereof |
| CN113118074A (en) * | 2021-04-06 | 2021-07-16 | 安徽光智科技有限公司 | Surface treatment process for infrared polished lens |
| CN114106701A (en) * | 2021-12-03 | 2022-03-01 | 安徽光智科技有限公司 | Polishing solution for zinc sulfide and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 舒朝濂: "现代光学制造技术", vol. 1, 31 August 2008, 国防工业出版社, pages: 62 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115415204A (en) * | 2022-09-15 | 2022-12-02 | 安徽光智科技有限公司 | Treatment method before germanium lens coating |
| CN115445981A (en) * | 2022-09-22 | 2022-12-09 | 安徽光智科技有限公司 | Zinc selenide/zinc sulfide ball cover coating pretreatment process |
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